987709228 has 48 divisors (see below), whose sum is σ = 1999162368. Its totient is φ = 422712000.

The previous prime is 987709211. The next prime is 987709241. The reversal of 987709228 is 822907789.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40683 + ... + 60253.

It is an arithmetic number, because the mean of its divisors is an integer number (41649216).

Almost surely, 2^987709228 is an apocalyptic number.

It is an amenable number.

987709228 is an abundant number, since it is smaller than the sum of its proper divisors (1011453140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987709228 is a wasteful number, since it uses less digits than its factorization.

987709228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19654 (or 19652 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 987709228 is about 31427.8416058119. The cubic root of 987709228 is about 995.8861756561.

The spelling of 987709228 in words is "nine hundred eighty-seven million, seven hundred nine thousand, two hundred twenty-eight".